C++ RVO: Return Value Optimization for Performance in Bloomberg C++ Codebases - Michelle Fae D'Souza

https://cppcon.org​
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Can You RVO? Using Return Value Optimization for Performance in Bloomberg C++ Codebases - Michelle Fae D'Souza - CppCon 2024
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Learn what Return Value Optimization (RVO) is, and what you can do to ensure the compiler applies it on your C++ code! This talk is open to beginner, intermediate, and advanced C++ audiences, and will be especially valuable for engineers who work on large-scale and/or high performance codebases.

While this compiler optimization technique was first added into the C++ Standard way back in 1997, many of today’s engineers have forgotten to utilize it in their production-deployed code.

This talk will dive into different perspectives as to what RVO is, including how copy elision is defined in the C++ Standard, as well as an analysis of Assembly when RVO is enabled. We will cover the different types of RVO, compiler support for it, and guidelines to help programmers ensure that the compiler uses RVO on their code. These guidelines will tie into examples from real-world scenarios where engineers could have optimized their code to gain the time and space benefits that come with RVO. We will also showcase the performance improvements that come from employing this compiler optimization technique.
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Slides: https://github.com/CppCon/CppCon2024/...

Sponsored by JetBrains: https://www.jetbrains.com/clion/
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Michelle Fae D'Souza

Michelle Fae D’Souza is a Software Engineer at Bloomberg, where she develops C++ code for the company’s order-trade entry and modification (OTE API) solution, which streamlines trading activity for many firms in the financial world. She is an active member of Bloomberg's C++ Guild and is a Technical Rep at Bloomberg. Michelle holds a bachelor’s degree in computer science from the University of California, Berkeley, where she was a Davis Scholar and President of the Computer Science Honor's Society.
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CppCon is the annual, week-long face-to-face gathering for the entire C++ community. The conference is organized by the C++ community for the community. You will enjoy inspirational talks and a friendly atmosphere designed to help attendees learn from each other, meet interesting people, and generally have a stimulating experience. Taking place this year in Aurora, Colorado, near the Denver airport, and including multiple diverse tracks, the conference will appeal to anyone from C++ novices to experts.
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